Cultivator



(m Mml') W. A. KNOWLTON.

GULTIVATOR. No. 287,443. Patented Oct. 30, 1883.

n. PETERS. mwuma n r w. Wilbinglon 0.0

Nisan STATES VILLIAM A. KNOWLTON,

OF ROCKFORD, ILLINOIS.

CULTIVATOR.

SPECIFICATION forming part of Letters Patent No. 287,443, dated October 30, 1883.

Application filed December 21, 1882. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM A. KNowL- TON, a citizen of the United States, residing in the city of Rockford, in the county of lVinnebago and State of Illinois, have invented certain new and useful Improvements in Gultivators, of which the following is a specification.

This invention relates to that class of cultivators known as straddle-row wheeled walking-cultivators, in which the shovel-beams are hinge-jointed to the horizontal portion of the crank-formed axle; and it consists in the hingejoint connection of the shovel-beams with the axle-tree made laterally and vertically adjustable, and in the draft-connection therewith.

In the accompanying drawings, Figure 1 is an isometrical representation of such portions of a cultivator as are necessary to illustrate my improvements in connection therewith. Fig. 2 is a vertical central section of my improvements in the lengthwise direction of the shovelbeams, and at right angles to the axle-tree of the wheeled carriage.

In the figures, A represents one of the carrying-wheels, mounted to revolve on the axlearm portion of the crank-formed axle-tree B,

about one-half of which is represented in the drawings.

At 0 is represented a metallic sleeve fitted to receive the outer horizontal portion of the crank-formed axle, on which it is represented in place. The forward side of this metallic sleeve is provided with a lengthwise slot, at, of dovetail form in cross-section, having its greatest width on the inner surface of the sleeve. The end portion of this slot at b is enlargedto receive the dovetailed end of aclamping eye-block. I

At 0 is represented a pillow-block having one side grooved lengthwise to engage the outer surface of the grooved sleeve, and its opposite side grooved crosswise to receive a coupling-bolt. This pillow-block is provided centrallywith a rectangular opening to receive a clamping eye-block.

At cl is represented a clamping eye-block fitted to freely enter the central opening in the pillow-block. The inner end of this clamping eye-block is produced in dovetailed form, adapted to enter through the enlarged end por tion, I), of the slot a, and slide lengthwise in the slot (1. This clamping eye-block dis provided centrally with an elongated eye-opening, e, which freely secures a joint coupling-pin, h, and its forward end is provided with a clamping-screw, k, to engage the coupling-pin and securely fix it in position to the sleeve,to prevent vertical or lateral movement, without interfering with the free oscillatory movement of the sleeve on the horizontal portion of the axle-tree. From this construction and arrangement of the parts it will be seen that the coupling-pin may be readily adjusted vertically and laterally to any extent within'the limits of the devices, and when adjusted can be fixed in its relative adjusted position by means of the clamping-screw. At D is represented the yoke or clasp portion of the hinge-j oint connection of the shovelbeams with the wheeled carriage or supportingframe of the cultivator. The rear arm, I, of this yoke is fitted to receive theforward ends of the shovel-beams E, which are securely fixed thereto by means of screw-bolts passed through the parts. yoke portion consists of parallel arms m, suitably separated, and projecting forward to span the sleeve on the horizontal portion of the axletree. The forward ends of these parallel arms are fitted to receive the couplingpin h in a free manner, producing a free joint-connection of the shovel-beams with the wheeled carriage.

At a is. represented a draft-link having a free joint-connection on the depending end portion of the coupling-pin, below the parallel yoke-arms, and in this instance is held in position by means of a pin passed transversely through the coupling-pin below thedraft-link. The free end of this draft-link is fitted in eye form to receive the whiffletree connection.

At 0 are represented the cultivator-shovels, and at p are represented handles, all of the usual form, and are connected to the shovel beams in the usual manner.

From the foregoing it will be seen that by means of my improved joint-connection of the shovel-beams with the wheeled carriage the shovel-beams may be adjusted laterally to or from the center of the wheeled carriage, and their forward ends may be adjusted vertically, which will raise or lower the draft-link, and

The forward end of this will cause the shovels to run at a greater or less depth to vary the depth of cultivation. This vertical adjustment is represented by the position of the parts as shown in the solid and dotted lines in Fig. 1.

The several parts necessary to produce a complete cultivator not herein described or shown may be any of the known parts and of any known construction capable of use in connection with the parts shown and herein before described to produce acornplete cultivator.

I claim as my invention 1. The combination, with the wheeled supporting-frame, of a slotted sleeve, a grooved pillow-block, and a clamping eye-block, these several parts combined for joint action, substantially as and for the purpose set forth.

2. The con1bination,with the slotted sleeve,

I the grooved pillow-block, and the eye clamping-block, of a yoke and coupling-pin pro ducing a hinge-joint connection of the shovelbeams with the sleeve, capable of a lateral and vertical adjustment thereon, substantially as and for the purpose set forth.

3. The combination,with the yoke-coupling of the shovel-beam, made vertically adjustable relatively with its connection with the Wheeled carrying-frame, of a draft attachment connected to the coupling-pin so as to be adjustable therewith, substantially as and for the purpose set forth.

WILLIAM A. KNOVVLTON. \Vitnesses:

DAVID N. STARR, A. O. BEHEL. 

